CORROSION RESISTANCE - Our tire valve stem caps feature a metal shell and plastic insert, protecting against corrosion, especially in wet and cold conditions. VERSATILE COMPATIBILITY - Compatible with all American standard Schrader valve stems, including cars, SUVs, trucks, RVs, bicycles, and bikes. Inner dimensions: 0.31inch diameter, 0.54inch height. EFFORTLESS INSTALLATION - BAURATTI valve stem caps boast a user-friendly design with simple horizontal stripes, ensuring easy hand tightening or removal. LEAK-PROOF SEAL - Equipped with a built-in one-piece sealing ring inside the plastic liner, our tire caps provide a leak-proof seal, preventing damage due to tire leaks. STYLISH DURABILITY - Crafted from durable lightweight aluminum alloy with emblem laser-etched, BAURATTI tire valve stem caps offer a stylish anodized metallic finish. Perfect for gifting friends, bosses, and family members. BAURATTI American Flag Tire Valve Stem Caps - (5 Pack) Metal Air Caps with Plastic Liner, Corrosion Resistant, Leak-Proof, Universal Stem Covers for Cars Trucks Motorcycles Bikes - Orange